Optoelectronic devices on traveling and standing elastic waves for microprocessor control systems

Abstract

The urgency of creating modern optoelectronic devices on traveling and standing elastic waves is shown. The goal of the work is formulated as a choice of possible ways of increasing the efficiency of the developed optoelectronic devices and systems and their creation. Based on a detailed analysis of the well-known patent, scientific, and technical literature, the state of research and development in the field of optoelectronic devices and systems have been evaluated. A wide variety of designs and schemes of optoelectronic devices based on the acousto-optic effect is revealed, and the absence of consideration of the form of elastic ultrasonic waves (traveling and standing) is revealed. The mode of operation and the structure of the instruments depend on the type of waves. Based on the analysis of the physics of processes occurring in traveling and standing elastic waves, constructive principles are revealed that ensure complete reflection or absorption of the incident ultrasonic waves. A brief description of the developed new optoelectronic devices on standing and traveling elastic waves is given. It is shown that when controlling the movement of objects, a high resolving power is provided (0.078 mm with a range of displacements in the range of hundreds and thousands of mm). A reference is made to the new optoelectronic devices developed on the basis of standing and traveling elastic waves developed with the participation of authors, protected by patents of the Russian Federation: control of displacement (patents of the Russian Federation No. 124385, 154140), temperature monitoring in the metal cutting zone on the concentration of carbon monoxide (RF patent No. 167429), thermal imaging control of the temperature of objects (RF patent No. 136885).